Risk of symptomatic DVT associated with peripherally inserted central catheters

Area of Science:

• Vascular Surgery
• Thrombosis Research
• Medical Device Safety

Background:

• Conflicting data exists on risk factors for peripherally inserted central catheter (PICC)-associated deep vein thrombosis (DVT).
• Understanding these risk factors is crucial for healthcare providers to develop effective prevention strategies for DVT.
• PICC insertion teams require clear guidelines to mitigate DVT risks.

Purpose of the Study:

• To prospectively identify the incidence and risk factors for symptomatic DVT in patients with PICC insertions.
• To establish a predictive model for PICC-associated DVT.
• To inform clinical practice regarding PICC selection and patient management.

Main Methods:

• A 1-year prospective observational study was conducted at a level I trauma center.
• Included all patients undergoing one or more PICC insertions by a certified PICC team.
• Data collected on patient demographics, catheter characteristics, and DVT development.

Main Results:

• A total of 2,014 PICCs were inserted; 3.0% (60 insertions) resulted in DVT.
• The strongest predictors for DVT were prior DVT (OR, 9.92), use of larger catheters (double-lumen 5F: OR, 7.54; triple-lumen 6F: OR, 19.50), and prior surgery duration > 1 hour (OR, 1.66).
• The predictive model achieved an area under the curve of 0.83.

Conclusions:

• Prior DVT and prolonged surgery (> 1 hour) are significant risk factors for PICC-associated DVT.
• Increasing catheter size, particularly double-lumen 5F and triple-lumen 6F, is strongly associated with increased DVT risk.
• Optimizing patient selection and catheter size can potentially reduce the incidence of PICC-associated DVT.